Upgrade the critical lower radiator connection and eliminate factory plastic failure points.
The lower radiator hose (running from the bottom of the radiator to the thermostat) on BMW N52N and N53 engines relies on a factory plastic flange connection. Over time, intense engine heat and pressure degrade the plastic, leading to sudden cracks, severe coolant loss, and overheating risks.
The Bevinsee Lower Radiator Hose Repair Kit solves this issue permanently. By replacing the fragile OEM plastic connector with a CNC-machined 6061 billet aluminum flange and a triple-layer reinforced silicone hose, this kit guarantees leak-free reliability and superior pressure resistance.
Why upgrade to this Bevinsee Lower Hose Kit:
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CNC 6061 Billet Aluminum Flange: Replaces the failure-prone factory plastic connector with a heavy-duty anodized aluminum flange that will never crack or warp.
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Triple-Layer Reinforced Silicone: Engineered to handle high pressure (up to 3 bar) and extreme temperatures. Uses an anti-aging formula so the hose stays flexible without hardening or cracking.
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Upgraded Stainless Steel Clamps Included: Fresh, high-torque stainless clamps guarantee an airtight, leak-free seal.
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Engine Bay Aesthetics: Replaces ugly, faded factory rubber/plastic with a clean, high-performance look.
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Direct OEM Replacement: Designed to directly replace BMW part number
17127564478(17 12 7 564 478).
Technical Specifications:
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Brand: BEVINSEE
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Material: 6061 Anodized Aluminum Alloy, Triple-Layer Silicone & Stainless Steel
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Position: Radiator Bottom to Thermostat
Compatibility & Important Notes:
⚠️ FITMENT CHECK: Fits models with the N52N or N53 engine only. Will NOT fit early N52 or N51 (SULEV) engines, nor part number
17127531581.
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BMW 3-Series: E90 / E91 / E92 / E93 – 323i, 325i, 328i, 330i (2005–2011 with N52N / N53)
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BMW 1-Series: E81 130i, E82 125i/128i, E87 LCI 130i, E88 125i/128i (N52N engine)
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BMW X1: E84 – 25iX, 28iX (2009–2011 with N52)
Not sure which hardness to choose? View our Strongflex Color & Hardness Guide to find out which bushing suits your driving style and vehicle setup.